TY  - BOOK
AU  - Birdsong David
TI  - Metalinguitic performance and interlinguistic competence
T2  - Speringer series in language and communication; 25
U1  - P:(S:4), M9 
PY  - 1989///
CY  - Berling
PB  - Springer Verlag      
KW  - LINGUISTICS
ER  -